CVE-2025-40104

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The Linux kernel’s ixgbevf driver had an issue with mailbox API compatibility. The driver experienced discrepancies due to the introduction of features specific to certain drivers (like IPSec and ESX mailbox enhancements) without proper support negotiation. This led to crashes and regressions in functionality, such as IPsec support and ESX mailbox communication. A fix was implemented to add a new mailbox operation to negotiate supported features with the PF driver, ensuring compatibility and allowing for future feature extensions.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.